Car-truck.



W.. S. ADAMS.

GAR TRUCK.

APPLIoATIoN HL2!) AUG. 31, 1911.

Laoslso.

Patented July 9, 1912.

2 SHEETS-SHEET 1.

w. s. ADAMS.

- GAB TBUOK.

APPLICATION FILED AUG. 31, 19I1`.

Patented July 9, 191,2.

m m @l m m m m 2 uo r e Q W5 WALTER' S. ADAMS, 0F PHILADELPHIA,PENNSYLVANIA, .ASSIGYNOB' TO .THE J. G.

BRILL COMPANY, 0F PHILADELPHXA, PENNSYLVANIA, A CORPORATION 0F PENN-SYLVANIA.

CAB-TRUCK.

,Specifica-.tion of Letters Patent.

Patented July 9, 1912.

IApplication filed August 31, 1911. S-erial'No. 647,004.

To all whom t may concern Car-Trucks, of which the following is, a.

specification. l The object of my invention is to provide a truck whichis especially adapted to cars carrying electric batteries and propelledby electric motors which are energized from the batteries. In trucks ofthis character, the struct-ure must be light, rigid and strong. Thecar-body must be carried low enough to permit passengers to get on oroffwith-ease, and'without jar or vibration. The carl truck, hereinafterdescribed, em bodying my invention, obtains all these results in asimple and satisfactory manner.

e For a more particular description of my invention, reference is to be-had to the accompanying drawings, forming a part hereo f1n which--igure 1 is a side elevation of a truck embodyin my invention. Fig. 2 isaplan ,View o a portion of the same some details being omitted. F ig. 3is an enlarged side elevation of a portion of the structure shown inFig. 1.

' Throughout the various views of the drawings, similar referencecharacters designate similar parts.

My improved truck 1 is put under a carbody 2, or a structure, (such as atop-chord, not. shown) but as lightness is desirable, it is preferableto omit the top chord and attach the "truck 1 directly to the sills 3 ofthe foar 2. The truck 1 has the usual wheels 1 .mounted 'on suitableaxles 5, in the conventional manner, and these axles 5 engage axle boxes6 in any suitable way, as by roller, ball or friction bearings 7.

The axle boxes 6 are of novel form Aand consist of two parallel bars 8and 9 respectively, the bar 8 being the outer, and these bars areconnected at their ends by spring seats 10 and 11, and at their centersby the bearing 7. The bars 8 and 9 are preferably made and spacedsubstantially as shown, so that they will have a minimum weight andmaximum strength and be sufficiently separated to avoid interfering withthe springs `that they carry.

The bearings 10 have laterally extending ears 13 and 14, which areintegral with the bars 8 and 9 respectively, and the ears 12 are held intheir respective places by bolts 15, which bind the ears l2 and 13and=12 and 111 as shown. Each bearing 10 has a central perforation witha post 16 passing through the same, and slidably mounted thereon. Acoiled spring 17 surrounds the upper portion of this post, and thisspring 17 is surinounted by a suit-able cap 18, that is adapted to besecured to a car body or top chord, as. desired. The lower end of eachpost 16 is provided with a suitable casting or forging 19 shapedsubstantially as shown,.and bolted on one side to bar 20 by suitablebolt 21, and on its other side it is secured to a truss-rod 22 in anysuitable manner, and this truss-rod runs to a seat 23, which is also`secured to the car body in the usual way. The truss-rod'or rod 22 isprovided with the usual nut 24, which will permit adjustment, so thatthe tension of the bar may be regulated, as desired. It will bevnoted-that two bars 2O are employed, one

on each side of the truck, and, if desired, the storage batteries may besupported from these bars. It will also be noted that by removing thebolts 15, the axle boxes 6 may be removed from under the car body whenthe same is jacked up, or otherwise suitably supported, so that accessmay be had to the motor or other parts, for either examination,repairs'or renewals.

The outer ends of each axle box 6 have the bars 8 and 9 united by springseats 11, as above set forth. These spring seats are held in position bybolts 25 or other-suitable means or may be made integral with the axlebox, and a leaf spring 26 is secured to the seat 11 by means of suitablebolts 27.

Each spring is provided with a suitablev band 28 of the conventionalform. The free ends of the spring 26 engage suitable rub plates 29,which are attached to the car body 2 in the usual manner.

From the foregoing it is apparent that the car-body is carried from theaxle boxes 6 by means of the springs 17 and 26, which `are at somedistance from their respective axles 5, and that in each case one springis a leaf spring and the other is a coiled spring. As a leaf spring ismore sluggish in its action than a coiled spring because of the frictionof its members, one on another, all tendency of carbody to oscillate orvibrate in an undue manner is entirely elimi nated. The use of aseIni-elliptic spring 26,

as shown, increases the length of the spring base and thereforeincreases the efficiency of the spring system of the truck one end ofcach spring 26 reachingout to near the end of the truck, and the ot-herto a point over an axle. l

The outer' ends of the axle boxes 6 are united by a suitable crossing 30secured near the seats 11, or in any other suitable Inanner. Eachcrossing 30 is provided with up wardly extending brackets 31, from whichthe brake rigging 32 is. hung in the usual way. It will be noted thatbrake shoes 33 are outside the wheel base, and are hung so as to besupported Without the intervention of a spring from the axle boxes. Inother Words, the brake shoes are hungsubstanltially from the axle boxes,but this causes no undue rotation or oscillation of these axle boxes,because of the arrangementof the springs 17 and 26, above described.

While I have shown and described one embodiment. of my invention, it iso-bvious that it is not restricted thereto, but is broad enough to coverall structures that come within the scope of the lannexed claims.

Having thus described my inventionvhat I claim is:

1. In a device of the class described, an axle, car wheels mounted onsaid axle, axle boxes carried by said axle, and coiled and leaf springscarried directly from the said axle boxes. y

9.. A truck for cars comprising an axle, a pair of wheels, saddlesjournaled on the axle, spiral springs seated on the inner ends of thesaddles, and a leaf-spring supported upon the outer ends of saidsaddles, the inner end of said spring extending over the saddles towardt-he axle boxes.

3. In a car-truck the combination of an axle and a pair of wheels, apair of saddles journaled upon the axle, a spring-postA extendingthro-ugh the inner end of the saddle, a spiral spring about the post, aleaf-spring supported upon the outer end of the saddle the inner end ofwhich spring extends over the saddle, and a support for the lower end ofsaid spring-post.

1. In a car truck, the combination of anv axle and a pair of wheels,saddles journaled on the axles, cross-bars connecting the outer ends ofsaid saddles, a leaf spring support-- ed upon the outer ends of saidsaddles, its inner end extending over t-he saddles, and a spiral springsupported on the inner ends of said saddles. i

5. In a car truck the combination of a pairof axles and wheels thereon,of saddles -journaled on said axles having ends extend, ing forwardlyand rearwardly from said' axles, spring posts passing,l through theCopies of this patent may be obtained for ve cents each, by Washington,D. C.

inner ends of said saddles about which said ends may move, cross-barsconnect-ing the front ends of said saddles together, upwardly archedleaf-springs secured lto the outer ends of said saddles the inner endsof said springs extending over the saddles, a tie bar supporting andconnect-ing the ends of said spring posts and a rod extending from theends of said tie bar, and adapted to be secured to a car body.

6. In a device of the class described an axle box and means forsupporting the same, said axle box being composed of two parallel barsunited by a bearing and spring seats at each end of said bars, aleaf-spring mounted on one of said seats and acoil spring on the other;y v

7. In a truck of the class described, axles, axle-boxesv supportedthereby, and springs carried by the axle boxes, one of 4said springsbeing a semi-elliptic spring with one end substantially over an axleandthe other extending toward the end of a car.

8. In a car truck the combination with axles, wheels, forwardly andrearwardly extending saddles supported on the axle, the rear end of thesaddle having an apertured spring seat formed in sections, means forsecuring the sections together, a spring post passing through saidaperture, a spring on said seat, a spring on the other end of thesaddle, and means for combining the said springs and spring posts with acar-body.

9. In a device of the class described, axleboxes and means forsupporting the same, a' leaf spring supported at the outer ends` of eachof said axle boxes and a coiled spring supported at the inner end ofeach of said axle boxes, a post extending through each of said. coiledsprings and bars uniting some of said posts. Y

10. In a device ofthe class described, axle boxes and means forsupporting same, springs mounted at each yend of. each axle box, a postat one end of each axle box,

parts uniting said'posts, a car body carried by the springs on saidaxle'boxes and atrussrod uniting each post Wit-h the car body.

11. In a device of t-he class described, axle boxes adapted to support acar body, springsv at each end of each axle box, a post at one end ofeach axle box, parts uniting said posts, crossings uniting the otherends of said axle boxes on opposite slides of the truck and a brakesystem suspended from said crossings.

Signed at the city of Philadelphia, county of Philadelphia, Stateof.Pennsylvania,this

Q8 day of August, 1911'. 1

` WALTER S. ADAMS. Witnesses:

JOHN H. .QHLssEN, HARRY F.` MCKILLLP. y

addressing the Commissioner o f latents,

